Where did you go to business school? You have to look at the man hour per phone. Forget where it is made. If it takes one man hour to build then set a price for that ONE man hour.
“Where did you go to business school?”
I should ask you the same. You seem to think that because wages double here, the productivity of the workers would magically double as well?
Otherwise, looking at “man-hours” per phone is pointless.